Which of the following types of agriculture is least likely to use chemical pesticides? Biodynamic
Oь
Industrial
Precision
Urban

your answer is "the 1950's"

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.